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Title:
ゴム部材の耐衝撃性評価方法
Document Type and Number:
Japanese Patent JP7056650
Kind Code:
B2
Abstract:
A loss tangent tan δ is the ratio between a storage modulus and a loss modulus calculated from a stress when vibrations of a predetermined frequency are applied to a rubber member. When evaluating a shock resistance performance of the rubber member using an elongation at break Eb, a tensile strength at break TSb, and a loss tangent tan δ of the rubber member, a speed of an impact applied under use conditions of the rubber member is matched with a maximum speed of vibrations. As a result, the shock resistance performance can be evaluated using a value of the loss tangent tan δ corresponding to an impact actually applied to the rubber member, and it is possible to improve the accuracy of the shock resistance performance evaluation.

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Inventors:
Miyajima Jun
Application Number:
JP2019511063A
Publication Date:
April 19, 2022
Filing Date:
December 14, 2017
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
G01N3/32
Domestic Patent References:
JP2000198517A
JP63001950A
Attorney, Agent or Firm:
Shigeru Noda



 
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